Aria engine - changing block size

Question

It's possible to change aria_block_size from default 8192 without recreating tables? I want try 1024 or 2048 but after change in my.cnf and restart mariadb I got this errors on aria tables:

#138 - Wrong block size 8192; Expected 1024

My db have about 120Gb and many tables, so export/delete/import will cause many hours of outage and this is not possible.